JPH05277004A - Resin molded face fastener and engaging device using the fastener - Google Patents

Abstract

PURPOSE:To regulate fitting positions easily by setting a specific close contact degree, when two molded face fasteners are integrally engaged with each other. CONSTITUTION:The maximum width B of the cross-sectional areas of the expanded head sections of continuous-projection-shaped engaging pieces 2, and the height of the apex section of the engaging pieces 2 from the surface of a substrate 1 are set to be 1.5-5mm. An equation I is satisfied with relation between height A from a line L being in contact with the lower end of the expanded head sections of the engaging pieces 2 and parallel with the substrate 1 up to the apex section of the engaging pieces 2, the double D of a wing lower-section, and the height E of the wing lower-section, and in a state that they are integrally engaged with each other, excess clearance is removed. In order to engage the engaging pieces 2 with each other and to keep an engaged state stably, an equation II is set to be satisfied between the with B and a space S to be formed between the expanded head sections of the engaging pieces 2, and the expanded head sections of the adjacent engaging sections 2. Two molded face fasteners are engaged with each other integrally and easily, and when the fasteners are engaged with each other, then in order to move them slightly in the horizontal direction, an equation III is set to be satisfied with a space B+S between the double D of the wing lower section and the engaging pieces 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin-molded surface fastener (hereinafter referred to as a molded surface fastener) and an engagement system using the same, and in particular, a plurality of continuous protrusion-shaped engagement pieces having a bulged cross-section. Two molded surface fasteners that are erected at intervals can be locked and integrated, and one molded surface fastener can be locked in the locking direction (hereinafter referred to as lateral direction) with the two molded surface fasteners locked. The present invention relates to a resin-molded surface fastener that can be slightly moved in an engaging direction (hereinafter referred to as a longitudinal direction), and an engaging system using the same.

[0002]

2. Description of the Related Art Conventionally, surface fasteners which are commercially available under the trade names of "Magic Tape (registered trademark)" and "Majitouch (registered trademark)" are single fibers of synthetic fiber or bulge on one surface of a substrate. And a female surface fastener in which a large number of loop-shaped engaging elements are provided on one surface of the board. By locking the element, the male surface fastener and the female surface fastener are closely integrated.

"Scotch Mate (registered trademark)",
The surface fastener marketed under the trade name of "Dual Lock (registered trademark)" is different from the above-mentioned locking method in which the male surface fastener and the female surface fastener are closely adhered to each other, and has a large number of headed protrusions on one surface of the substrate. The engaging elements of two surface fasteners of the same shape, which are erected in a group, are opposed to each other, and the headed protrusions of the surface fasteners are fitted between the headed protrusions of the other side to form a surface fastener comrade. To be closely integrated. Each of the above locking methods is a method in which two surface fasteners are closely integrated by a large number of planar point engagements, and the degree of freedom in the state of closely integrated is small.

[0004]

The above-mentioned conventional surface fasteners are intended to surely bring two surface fasteners into close contact with each other. Therefore, it is difficult to move one of the surface fasteners for position adjustment in the state where they are closely attached and integrated. If the surface fastener in the state of being closely integrated is forcibly moved, a large shearing force acts on the close contact surface, and the surface fastener is separated or the engaging element is destroyed. When adjusting the mounting position of one of the conventional surface fasteners that have been tightly integrated, it is necessary to remove the surface fastener and then move one of the surface fasteners to a specified position to bring them into close contact again. There is. Therefore, it is essentially unsuitable for applications in which the mounting position needs to be finely adjusted.

Therefore, an object of the present invention is to provide a resin molded surface fastener and an engagement system using the same, which solve the above problems. Another object of the present invention is 2
One molded surface fastener can be moved slightly in the horizontal direction while the molded surface fasteners are locked and integrated, and can be freely slid in the vertical direction.
An object of the present invention is to provide a resin-molded surface fastener whose attachment position can be easily adjusted and an engagement system using the same. An object of the present invention is to provide an inexpensive resin molded surface fastener that can be easily manufactured by extrusion molding or injection molding, and an engagement system using the same.

All these objects can only be achieved by the molded surface fastener according to the invention being manufactured in a very simple manner and at a very low cost. The resin molded surface fastener of the present invention and the engagement system using the same are, needless to say, the application fields of conventional surface fasteners.
Applications in which the mounting position needs to be finely adjusted, such as mounting of interior and exterior materials in the housing field, automobiles,
It can be widely used in various fields such as attaching a seat cover of an aircraft or the like.

[0007]

That is, according to the first aspect of the present invention, at least one surface of the substrate is provided with a plurality of continuous projection-like engagement pieces having a bulge-shaped cross section, which are erected at regular intervals. Resin molded surface fastener, the maximum width (B) of the bulging head cross section of the continuous protruding engagement piece is 1.5 to 5 mm, the height from the substrate surface to the top of the engagement piece is 1.5 to 5 mm, And a straight line (L) that is in contact with the lower end of the bulge of the engaging piece and is horizontal to the board
To the top of the engaging piece (A) and the height (E) from the substrate surface to the straight line (L) and the outermost end of the bulge of the engaging piece, perpendicular to the substrate The relationship between the point (X) where the straight line intersects the straight line (L) and the distance (D / 2) from the point where the straight line extending parallel to the substrate abuts on the engaging piece (D / 2) and the expansion of the engaging piece. Relationship between the gap (S) formed between the head and the adjacent bulge and the maximum width (B) of the bulge cross section of the engaging piece, and the above distance (D / 2)
The resin molded surface fastener is characterized in that the relationship between the engagement piece interval (B + S) and the following equations (1) to (4) are satisfied. A ≦ E ≦ A + 1.2 D ・ ・ ・ (1) 0.7 B ≦ S ≦ 1.2 B ・ ・ ・ (2) 0.15 (B + S) ≦ D ≦ 0.45 (B + S) ・ ・ ・ (3)

According to a second aspect of the present invention, there is provided a first resin-molded surface fastener according to the first aspect and a second resin-molded surface fastener having the same structure as the first resin-molded surface fastener. The first and second resin-molded surface fasteners are arranged so that the continuous projection-shaped engagement pieces having a bulge-shaped cross section face each other, and the continuous projection-shaped engagement pieces of one of the resin molded surface fasteners are opposite sides. The resin-molded surface fastener is fitted into a gap provided between the adjacent continuous-projection-shaped engagement pieces so that the two resin-molded surface fasteners are engaged and integrated with each other. A resin molded surface fastener that is integrated with a stopper is configured such that the resin molded surface fastener can move freely in the direction of the continuous projection-like engaging piece and can move slightly in the locking direction. It is an integrated system.

[0009]

When the two molded surface fasteners are locked and integrated with each other, it is necessary to adjust the mounting position based on the procedure of the mounting work with the adherend and the adjustment of the locking direction and position. However, if the adhesion is high when the locking is integrated, it is extremely difficult to move one molded surface fastener in the vertical and horizontal directions to adjust the mounting position. According to the present invention, when the two molded surface fasteners are locked and integrated with each other by the above-described configuration, the two molded surface fasteners are locked and integrated with each other by providing an appropriate degree of adhesion. The fastener can be moved slightly in the horizontal direction and freely in the vertical direction. (1) It is easy to attach and detach the two molded surface fasteners. (2) The two molded surface fasteners in the locked state have large locking strength in a specific direction. The two conflicting requirements can be met at the same time.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the molded surface fastener of the present invention and an engagement system using the same will be described with reference to the drawings. Figure 1
FIG. 3 is a perspective view of the molded surface fastener of the present invention, in which one surface of the elongated substrate 1 is provided with a plurality of continuous protrusion-shaped engaging pieces 2 having a bulging cross-section in parallel with the longitudinal direction of the substrate at regular intervals. It is erected in. The continuous protruding engagement pieces may be provided upright on both surfaces of the substrate. In addition to the mushroom shape shown in FIG. 1, the cross-sectional bulging portion of the engaging piece has a left-right asymmetric arrowhead shape shown in FIG. 2 and an umbrella shape shown in FIG. As for the shape of the bulging portion in cross section of such an engaging piece, various shapes other than those shown in the drawings can be adopted for the purpose of the present invention. Further, the shape may be a bilaterally symmetrical shape or a bilaterally asymmetrical shape. Usually, a bilaterally symmetrical shape is preferably adopted.

In the molded surface fastener of the present invention, as shown in FIG. 4, the engagement piece 2 erected on one surface of the substrate 1 in a continuous protrusion shape has a specific height, and the engagement piece expands. The head cross section has a specific width (B). The height (A) from the straight line (L) that is in contact with the lower end of the bulge of the engaging piece and is parallel to the board to the top of the engaging piece (A), and the height from the surface of the board to the straight line (L) ( E)
[Hereinafter referred to as sleeve height], maximum width (B) of the cross section of the engaging piece,
A straight line extending in parallel to the board from the point (X) where the straight line perpendicular to the board, which is in contact with the outermost end of the bulging section of the engaging piece, intersects the straight line (L). Distance to touch (D / 2)
[Hereinafter referred to as sleeves], the gap (S) formed between the bulging portion of the engaging piece and the adjacent bulging portion, and the interval (B +) of the engaging piece
S) each has a specific relationship, for the first time has a large locking strength in a specific direction, which is the object of the present invention,
Also, there is looseness in the lateral direction when the two molded surface fasteners are locked and integrated, and one molded surface fastener can be freely slid in the vertical direction. Fasteners are provided.

The above parameters (A), (B), (D), (E), and
The relationship of (S) is the force (pressing force) for locking and fixing the two molded surface fasteners, and the force (disengagement strength) for separating the two molded surface fasteners that are closely fixed together in the vertical direction. This is an important requirement for setting the degree of freedom of the two molded surface fasteners in the stopped state within a practical range.

If the pressing force is too large, it is difficult to smoothly lock and integrate the two molded surface fasteners, and it is also difficult to separate them, which is not practical. If the disengagement strength is too large, the disengagement work is difficult when the molded surface fastener is reused, and the engaging piece may be damaged when disengaged, which is not practical. The pressing force and the peeling strength are appropriately determined depending on the hardness and flexural modulus of the resin used, but the pressing force is usually 2.0 kg / cm ↑ 2 or less, preferably 0.3 to 1.5 kg / cm ↑ 2. Also, the disengagement strength of 6 kg / cm ↑ 2 or less is appropriate.

In order to smoothly lock the two molded surface fasteners and to prevent an excessive clearance in the locked and integrated state, first, the expansion of the engagement piece erected on the surface of the substrate is performed. A straight line that touches the lower edge of the head and is parallel to the board
Height from (L) to the top of the engaging piece (A), twice the sleeve length
The relationship between (D) and sleeve height (E) must satisfy the following equation (1). A ≦ E ≦ A + 1.2 D ・ ・ ・ (1) If the sleeve height (E) is smaller than the height (A) from the straight line (L) parallel to the board to the top of the engaging piece, two It is difficult to lock the molded surface fasteners together, and even if two molded surface fasteners are locked together, lateral adjustment is difficult. Also, the sleeve height (E) is a straight line parallel to the board.
If the height from (L) to the top of the engaging piece (A) plus 1.2 D is exceeded, the clearance between the engaging pieces will be large when the two molded surface fasteners are locked and integrated. It is hard to say that it is locked and integrated. In addition, the distance between the substrates and the deviation of the flatness are large, and the locking is easily released.

The width (B) of the cross section of the bulging portion of the engaging piece, that is, the straight lines that contact the outermost left and right ends of the bulging portion of the cross section of the engaging piece and that are perpendicular to the substrate intersect the straight line (L). Point (X), (X ')
A suitable distance is 1.5 to 5 mm, usually 1.7 to 3.5 mm. If the maximum width (B) of the cross section of the engaging piece is less than 1.5 mm, it is difficult to stably form a bulging head having a good shape, and it is also difficult to adjust the clearance in the locked state. If it exceeds 5 mm, the space is increased, the locking efficiency is lowered, and the expansion head is easily deformed, so that the locking is easily released.

In order to smoothly engage the engagement piece with the engagement piece of the molded surface fastener on the mating side and to maintain the stable engagement state, the width (B) of the expanded head cross section of the engagement piece , Sleeve height
(E) and the gap (S) formed between the bulging portion of the engaging piece and the bulging portion of the adjacent engaging piece must satisfy the following equation (2). 0.7 B ≤ S ≤ 1.2 B (2) If the gap (S) is less than 0.7 times the maximum width (B) of the bulging head cross section of the engaging piece, the mating piece with the bulging cross section is mated. It is difficult to fit smoothly into the gap provided in the engaging piece. On the other hand, the gap (S) is larger than the maximum width (B) of the bulge section of the engaging piece.
If it exceeds 1.2 times, the clearance becomes too large, and the two molded surface fasteners that are locked and integrated may easily come off during load adjustment such as vibration or when adjusting the mounting position.

Further, in order to easily integrate the two molded surface fasteners with each other and to move the two molded surface fasteners slightly in the lateral direction when locked, double the sleeve length, The distance (B + S) between D) and the engaging piece must satisfy the following equation (3). 0.15 (B + S) ≤ D ≤ 0.45 (B + S) (3) If (D) is less than 15% of the interval between the engaging pieces, it is difficult to adjust the position with the two molded surface fasteners locked. Is. On the other hand, if it exceeds 45%, the lateral movement distance when the two molded surface fasteners are locked is large and the locked state is unstable.

Further, the engagement piece having a bulge-shaped cross section must be shaped so as to easily engage with the engagement piece on the mating side and to exert a stable engagement force so that the engagement is not easily released. Normally, the locking angle of the sleeve under the bulging section of the engaging piece, that is, the angle (α) between the bottom surface of the bulging section having the bulging section and the perpendicular to the substrate is two molding surfaces as shown in FIG. It may be an angle or a curved surface at which the engaging pieces of the fastener engage with each other. Normal angle
20-90 degrees is preferably adopted as (α).

Further, in order to smoothly engage the engaging pieces of the two molded surface fasteners with each other, the intersection point (X), the central axis of the engaging piece and the top of the engaging piece are brought into contact with the substrate. The angle (β) formed by the straight line connecting the intersection (Y) with the horizontal straight line and the central axis of the engaging piece is preferably 30 to 70 degrees. If the angle is less than 30 degrees, the required engagement space will make the engagement piece bulky, and the engagement piece will fit into the gap formed between the mating engagement pieces on the other side to provide a good locking state. Hard to get. Further, when the angle exceeds 70 degrees, the top surface of the engaging piece becomes flat and the under-sleeve space becomes excessive so that the engaging piece is locked even if it is locked with the engaging piece of the molded surface fastener on the other side. The force is weak and it is easy to come off, and the clearance is large and rattles.

The thickness (W) of the leg portion of the engaging piece erected on one surface of the substrate is usually 0.3 to 3 mm, preferably 0.5 to 2.0 m.
m is appropriate. If the thickness of the leg is less than 0.3 mm, the leg is easily deformed, and it is difficult to stably form the engaging piece having a good bulging cross section. In addition, the strength of the engaging piece is reduced, and the engagement may be easily released by an external force. If it exceeds 3 mm, it is thick and the balance with the sleeve is poor, resulting in poor lockability and moldability.
Further, the space is increased and the locking efficiency is also reduced.

The height (H) to the top of the engaging piece erected on the surface of the substrate is 1.5 to 5 mm. Usually 1.8 to 4.5 mm is appropriate. If the height (H) is less than 1.5 mm, it is difficult to stably form an engaging piece having a good bulge shape in cross section.
Even if molding can be performed, the clearance is insufficient because the engaging pieces are small, and it is difficult to adjust the engaging pieces of the two molded surface fasteners by smoothly engaging them. height
If (H) exceeds 5 mm, the positional deviation from the adherend will be large and the locking space will increase. , It becomes easy to disengage the lock due to external force.

The thickness (T) of the substrate of the molded surface fastener is usually 0.3 to 3 mm, preferably 0.5 to 2.5 mm.
If the thickness of the substrate is less than 0.3 mm, the molded surface fastener may be bent, resulting in poor handleability. Further, since the board is easily bent and the engaging pieces are easily wobbled, the locking may be released when the two molded surface fasteners are locked and integrated. If the substrate thickness exceeds 3 mm, the mounting space between adherends increases, the amount of resin used is large, and the cost rises, and the moldability deteriorates. The thickness (T) of the leg portion of the substrate of the molded surface fastener and the thickness (W) of the engaging piece standing on one surface of the substrate are the shape and performance of the surface fastener, the hardness of the resin used, and the bending elasticity. It is determined appropriately by the rate.

The shape of the molded surface fastener of the present invention may be any size and shape as long as the engaging piece has the above-mentioned specific structure, but normally, the width of the substrate is a narrow width shape of 10 to 50 mm. Preferably used. On one surface of the narrow substrate,
A plurality of engagement pieces are provided upright in parallel with the longitudinal direction of the substrate. Depending on the purpose of use, the length of the narrow-width molded surface fastener is from a long length of several meters or more to a short length of 1 to 2 cm or less.

The molded surface fastener of the present invention has a large locking strength in a specific direction when the two molded surface fasteners are locked and integrated, and the locking is integrated. In order to have a suitable shape for moving one of the surface fasteners in the kept state, smooth detachability, and to obtain the necessary locking strength,
It is preferable to use a resin having a hardness of 70 or more for a soft grade and a flexural modulus of 30,000 kg / cm ↑ 2 or less for a hard grade. If the hardness is less than 70, the resin is too soft and it becomes difficult to smoothly move one molded surface fastener when the two molded surface fasteners are integrated, and the locking is easily released. Flexural modulus 30
If it exceeds 000kg / cm ↑ 2, the resin is too hard, and a slight amount of processing error may require an extremely large pressing force when the two molded surface fasteners are locked and integrated.

Resins having a hardness of 70 or more and a bending elastic modulus of 30,000 kg / cm ↑ 2 or less, which are applied to the molded surface fastener of the present invention, include thermoplastic resins such as polyolefin resins (polyethylene, polypropylene, polybutene, etc.), acrylic acid-based resins. Resin (methacrylic acid, polyacrylonitrile, etc.), vinyl acetate or vinyl alcohol resin (polyvinyl acetate, polyvinyl alcohol, ethylene-vinyl alcohol copolymer, etc.), halogen-containing resin (vinyl chloride resin, vinylidene chloride resin, Fluorine resin), styrene resin (polystyrene, acrylonitrile-butadiene-styrene copolymer, acrylonitrile-styrene copolymer, styrene-butadiene copolymer, etc.), polyamide resin, saturated polyester resin, diene rubber (butadiene rubber, Aesop Down rubber, chloroprene rubber, etc.), an olefinic rubber (polyisobutylene, ethylene - propylene copolymer), and a resin composed mainly of polyurethane resin.

From these resins, one kind or two or more kinds of resins satisfying the above conditions can be selected. Further, by adding additives such as other inorganic substances to these resins, the resins can be modified to change the processability, various physical properties and the like. Further, the surface of a part of the surface fastener, especially the surface of the engaging piece portion may be modified by roughening, plating, applying a surface treatment material, or the like. Usually, a resin having a hardness of 80 or more and a flexural modulus of 28,000 kg / cm ↑ 2 or less, which is a saturated polyester resin, a polyvinyl chloride resin, a polyolefin resin, or a polyurethane resin as a main component is preferably used. Above all, a resin containing a polyvinyl chloride resin as a main component is preferably used because it is excellent in moldability, weather resistance and the like and is inexpensive.
The hardness is a value measured by a JIS-K6301-A type hardness meter.

The molded surface fastener of the present invention may be molded by using one kind or two or more kinds of the thermoplastic resins described above. As shown in FIG. 5, the resin (I) used for the substrate 1 and the engaging piece are used. Bending elastic modulus is different from that of resin (II) used in 2
The engaging pieces may be compounded using different types of resins. By combining the engaging pieces, the strength of the substrate can be improved, and the engaging pieces can be softened to improve the detachability, and the like, so that the molded surface fastener can be provided with a function that matches its intended purpose. For example, when the resin (I) used for the substrate is a resin having a flexural modulus of 23000 kg / cm ↑ 2, and the resin (II) used for the engaging piece is a resin having a flexural modulus of 3000 kg / cm ↑ 2, Despite the high strength, the locking property is improved to enable soft locking, and the repeated fatigue resistance can be improved.

The molded surface fastener of the present invention can be directly attached to an adherend by sewing, adhesive bonding, tacker, ultrasonic wave, high frequency wave or the like. Further, for example, a curved hook-shaped locking means may be integrally provided on a part of the substrate, or the hook-shaped locking means may be provided upright on the back surface of the substrate. By providing such locking means, the molded surface fastener can be easily attached to the adherend. Further, when the molded surface fastener is attached to the adherend, the back surface of the substrate can be coated with a viscous adhesive. In this case, it is necessary to cover the surface of the adhesive / adhesive layer applied to the back surface of the substrate with a release paper.

Next, an engagement system using the molded surface fastener of the present invention will be described with reference to FIG. FIG. 6 is an example of an engagement system using a molded surface fastener having a plurality of engagement pieces 2 shown in FIG. 1, the engagement piece 2 of the first molded surface fastener 3 and the first molded surface fastener. Second with the same structure as
By locking the engaging piece 2'of the molded surface fastener 4, the two molded surface fasteners are locked and integrated.

The molded surface fastener of the present invention is a molded surface fastener suitable for use in a case where a lateral force is applied to the engaging piece in both the left and right directions, or when a force for peeling the engaging piece in a direction perpendicular to the substrate is received. It is preferably applied to fixing ceiling materials, roof tiles, equipment items, exhibits, hangings, floor materials, wall materials, tiles, artificial grass, and other flat surface materials. It
For example, as an example, when attaching a wall material, as shown in FIG. 7, a plurality of tape-shaped first molded surface fasteners 10 are fixed to the surface of the base material 20 in parallel with each other. On the other hand, on the back surface of the wall member 21, the first member fixed on the front surface of the base material is provided.
Engage with molded surface fastener 10 of, for example, 2-10 cm
The second molded surface fastener 11 having the length is intermittently fixed. Next, after the wall material 21 is brought into contact with the base material, the front surface of the wall material 21 is pressed to attach the second molded surface fastener fixed to the back surface of the wall material to the first surface fixed to the surface of the base material. Integrated with the molded surface fastener. By sliding the wall material in the direction of the arrow in this state, the wall material can be easily set at a predetermined position.

In the molded surface fastener used in the system of the present invention, it is preferable that the tops of a plurality of rows of engaging pieces are formed in a smooth shape. If the top of the engaging piece is formed in, for example, an arc shape, the surface of the second molded surface fastener is pressed even if the second molded surface fastener abuts the first molded surface fastener at an angle. At this time, the second molded surface fastener can be slid so as to be parallel to the engaging piece of the first molded surface fastener, and the two molded surface fasteners can be easily locked and integrated.

Next, a method of manufacturing the molded surface fastener of the present invention will be described with reference to FIG. First, the resin melted by the extruder 31 is extruded through the die 32, received by the sizing introducing device 33 so as not to destroy its shape, and enters the sizing processing unit 34 while being cooled. In the processing section 34, a cooling die having a ridge to be inserted into a gap between the adjacent engaging pieces of the molded surface fastener, or a resin molded body is formed by cooling water or the like to proceed, and processing distortion is removed by heating or the like. While slowly cooling, it is processed to form a stable molded body. Although the treatment temperature varies depending on the resin, for example, polypropylene is once cooled and then heat-treated at 100 to 140 ° C., and then gradually cooled to room temperature. The molded surface fastener produced is taken up by a roll 35, cut into a predetermined length by a cutter 36, collected in a box 37, and packed / shipped.

Experimental Examples 1 to 5 Using thermoplastic polyvinyl chloride having a flexural modulus of 10000 kg / cm ↑ 2 as the resin, extrusion molding was carried out by the apparatus shown in FIG. The formed surface fastener shown in FIG. 3 was formed. At that time, the height (A) from the straight line (L) parallel to the substrate of the above molded surface fastener to the top of the engaging piece, the maximum width (B) of the hook shape in section, the height (E) of the sleeve, the sleeve Lower (1 / 2D), gap formed between adjacent engaging pieces
Five types of molded surface fasteners with different (S) were molded. All of these molded surface fasteners have a width of 30 mm and a thickness of 1.0 mm.
6 rows of engaging pieces were provided on the surface of the substrate at a pitch of 4 mm. The molded surface fastener was cut into a length of 40 mm, and the following tests were performed at room temperature. In each of the molded surface fasteners used in the experimental examples, one molded surface fastener could be moved in the longitudinal direction in a state where two molded surface fasteners were locked and integrated.

(1) Pressing force: Two molded surface fasteners having the same structure are arranged so that the engaging pieces face each other, and the back surface of one molded surface fastener is pressed to engage the two molded surface fasteners. Force to lock the pieces to each other (2) Strong detachment force Force to pull the two molded surface fasteners in the locked and integrated state up and down

[0035]

[Table 1]

The engaging pieces of Experimental Example 1 had the above-mentioned (1) to (3).
It satisfies the formula and has practical performance as a molded surface fastener. However, the engaging piece of Experimental Example 2 did not satisfy the expression (1), the engaging pieces of Experimental Examples 3 and 4 did not satisfy the expression (2), and the engaging piece of Experimental Example 5 did not satisfy the expression (3). As a surface fastener, there are practical problems as shown in Table 1.

[0037]

As described above, the molded surface fastener of the present invention can be easily manufactured by extrusion molding or injection molding at extremely low cost and with uniform accuracy. In addition, the engagement system of the present invention is capable of freely moving one molded surface fastener in the longitudinal direction and adjusting the position in the lateral direction in a state where two molded surface fasteners are locked and integrated with each other. Can be applied to.
For example, it is applied to interior / exterior interior decoration, wall hangings, interior decoration of automobiles and aircraft, or adjustment of the installation position of machinery.

[Brief description of drawings]

FIG. 1 is a perspective view of a molded surface fastener.

FIG. 2 is a perspective view of a molded surface fastener.

FIG. 3 is a perspective view of a molded surface fastener.

FIG. 4 is a cross-sectional view for explaining the relationship with each parameter of the molded surface fastener.

FIG. 5 is a cross-sectional view showing another example of the molded surface fastener.

FIG. 6 is a perspective view showing an engagement system using a molded surface fastener.

FIG. 7 is a plan view showing an example in which a molded surface fastener is applied to mount a wall material.

FIG. 8 is a flowchart showing a manufacturing process of a molded surface fastener.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 Engagement piece 3 First molded surface fastener 4 Second molded surface fastener

Claims (2)

[Claims] 1. A resin-molded surface fastener in which a plurality of continuous protrusion-shaped engaging pieces each having a bulge-shaped cross section are erected at a constant interval on at least one surface of the substrate. The maximum width (B) of the bulging head cross section of the engaging piece is 1.5 to 5 mm, the height from the substrate surface to the top of the engaging piece is 1.5 to 5 mm, and the lower end of the bulging head of the engaging piece contacts. The height (A) from the straight line (L) horizontal to the board to the top of the engaging piece, the height (E) from the surface of the board to the straight line (L), and the bulge of the engaging piece. Distance (D / 2) from the point (X) where the straight line perpendicular to the board, which is in contact with the outermost edge, and intersects the straight line (L) above, until the straight line extending parallel to the board contacts the engaging piece (D / 2) And the relationship between the bulge portion of the engaging piece and the gap (S) formed between the adjacent bulge portions and the maximum width (B) of the bulge portion cross section of the engaging piece, and Relationship between the distance (D / 2) and the distance between the engaging pieces (B + S) The following (1)
A resin-molded surface fastener characterized in that it satisfies the expressions (3) to (3). A ≦ E ≦ A + 1.2 D ・ ・ ・ (1) 0.7 B ≦ S ≦ 1.2B ・ ・ ・ (2) 0.15 (B + S) ≦ D ≦ 0.45 (B + S) ・ ・ ・ (3) 2. A first resin-molded surface fastener according to claim 1, and a second resin-molded surface fastener having the same structure as the first resin-molded surface fastener. The molded surface fastener is arranged so that the continuous protruding engagement pieces having a bulging cross section are opposed to each other, and the continuous protruding engagement pieces of one resin molded surface fastener are adjacent to the mating resin molded surface fastener. And the engaging pieces of the resin-molded surface fasteners are engaged with each other by engaging in a gap provided between the engaging pieces of the continuous protrusions and the resin molding with the engaging integration. An engagement system using a resin-molded surface fastener, wherein the surface fastener is configured to be freely movable in a continuous projection-like engaging piece direction and slightly movable in a locking direction.